Leonard I. Kranzler, M.D.

Image of Leonard I. Kranzler


Chicago Health Medical Group
4700 N. Marine Drive, Suite 300
Chicago, IL 60640
(773) 564-5355

1 Erie Court, Suite 7000
Oak Park, Illinois 60302
(708) 763-1701

Office Hours:
Monday- Friday 9AM- 5PM



Dr. Leonard I. Kranzler is a board-certified neurosurgeon with extensive experience in the field. Known for his empathetic and compassionate care, Dr. Kranzler treats every patient as an important individual. He believes that teamwork is a key component of providing medical care, working closely with the patient, their families and their other healthcare providers.


Dr. Kranzler earned his medical degree from Northwestern University Medical School where he also completed the neurosurgery residency program. He went on to study microneurosurgery at the Kantonsspital in Zurich, Switzerland. Dr. Kranzler is a published author of 3 books and over 20 articles in peer reviewed journals. He is the director of the Chicago Review Course in Neurosurgery and clinical professor of surgery (Neurosurgery) at the University of Chicago.